Dora was taken into the karaoke hall by her mother Mercy. Mercy's performance today did not go well and her income was meager. Their family is currently in financial difficulty.Mercy Corps then gave Dora the task of caring for her younger brother.

The camera turned to the campus. Dora received strange looks from her classmates because of her family background, but she still faced it with strength.The teacher's kind assistance made her feel warm, but it also exposed the hardship of her life.On the way home, something went wrong with Dora's trolley. Fortunately, Bi Sheng came to help, and the fate of the two was intertwined.

As the plot progresses, Dora's family falls into deeper troubles.The appearance of the thugs revealed Mercy's debt problem. By coincidence, Dora met Bi Sheng again in her new residence.

On the other side, at the memorial service of Soo-yeon's father-in-law, the appearance of his mistress triggered family disputes, and Jin-tae's decision revealed the conflicts within the family.

Dora's feelings for Bi Sheng deepened day by day, but Bi Sheng's relationship with an older woman made her jealous.Dora bravely had a showdown with Bi Sheng and safeguarded her feelings.However, she leaves her brothers alone at home while she monitors Bi Sheng.

In the end, Bi Sheng's concern for Dora caused her to misunderstand, and she mistakenly thought that Bi Sheng was also interested in her.However, when Dora discovers Bi Sheng riding a motorcycle with an older woman, she reveals the relationship to her mother Mercy.